Unilateral spatial neglect (USN) is known to depress the activities of daily living. The purpose of this study was to clarify that categorizing the type of USN using line cancelation and line bisection tests is important when evaluating patients with acute intracerebral hemorrhage (ICH). In this study, patients with ICH were prospectively evaluated for the presence of USN using line cancelation and line bisection tests. They were classified into an incomplete USN group (iUSN = abnormal results in either test) or a complete USN group (cUSN = abnormal findings in both tests). We compared the initial severity of ICH and the outcomes of USN in the two groups. We were able to assess 16 patients, among whom 10 showed USN. Seven were then categorized as having iUSN and three as having cUSN. The median hematoma volume was larger in the cUSN group than in the iUSN group. The USN symptoms of patients in the iUSN group disappeared during the chronic phase, whereas the symptoms of patients in the cUSN group continued. The type of USN was associated with the initial severity of ICH and the persistence of USN.
Keywords: Cerebral hemorrhage, acute; Line bisection; Line cancelation; Outcome; Rehabilitation; Unilateral spatial neglect.